Specifications::
1. Battery Type: Replacement Battery
2. Type: li-ion
3.Voltage: 11.1V
4.Capacity: 65WH 5800mAh 
5.Color: BLACK
6.Warranty:  3 months

fit the original part number :
New Genuine Dell Latitude 3340 65Wh 5800mAh Laptop Battery HGJW8 TYPE YFDF9